﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace class1
{
    class swallow:BirdType 
    {
        public swallow()
        {

        }
        public override void jia()
        {
            base.jia();
            Console.WriteLine("我会往南飞。");
        }
    }
}
